Which disorders are included in Personality Disorder Cluster B?

• A. Borderline, Narcissistic, Histrionic, Antisocial
• B. Paranoid, Schizoid, Schizotypal
• C. Avoidant, Dependent, Obsessive-Compulsive
• D. Histrionic, Narcissistic, Schizoid, Antisocial

Answer: (A)

Cluster B includes the dramatic, emotional, and erratic personality disorders. The four disorders in this group are antisocial, borderline, histrionic, and narcissistic. They tend to feature intense emotions, impulsivity, grandiosity or attention-seeking, and patterns of unstable or manipulative relationships. This question asks which disorders fall into that cluster, and the correct set is Borderline, Narcissistic, Histrionic, and Antisocial.

The other options mix disorders from other clusters. Paranoid, schizoid, and schizotypal are Cluster A (odd/eccentric). Avoidant, dependent, and obsessive-compulsive are Cluster C (anxious/fearful). One choice also blends a Cluster A disorder with Cluster B, which isn’t a pure Cluster B list.